SWOMCD
SPC MCD 282021
NYZ000-PAZ000-282215-
MESOSCALE DISCUSSION 1488
NWS STORM PREDICTION CENTER NORMAN OK
0321 PM CDT WED JUL 28 2010
AREAS AFFECTED...NWRN PA...WRN/NRN NY...ERN LAKE ERIE...LAKE ONT
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 282021Z - 282215Z
STRONG/SEVERE THUNDERSTORMS ARE MOVING EWD ACROSS SWRN ONTARIO TO
THE NORTH OF LAKES ERIE AND ONTARIO...WITH OTHER STORMS ALONG THE
LAKE BREEZE FROM NERN OH INTO WRN NY. AREA IS BEING MONITORED FOR A
POSSIBLE WW.
STORMS ARE LOCATED IN ADVANCE OF A COLD FRONT THAT IS MOVING ACROSS
LAKE HURON AND LOWER MI...WITHIN A DESTABILIZING AIR MASS WITH
SBCAPE OF 1500-2000 J/KG. THIS REGION IS ALONG THE SRN EDGE OF
STRONGER WESTERLY FLOW ALOFT ASSOCIATED WITH A SHORT WAVE TROUGH
MOVING ACROSS THE NRN GREAT LAKES. VAD DATA SHOW 30-40 KT MID LEVEL
WINDS RESULTING IN SUFFICIENT DEEP LAYER BULK SHEAR TO SUPPORT
ORGANIZED CONVECTION INCLUDING EMBEDDED BOW ECHO STRUCTURES...WITH
ATTENDANT THREAT FOR DAMAGING WIND GUSTS.
..WEISS.. 07/28/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...BTV...ALY...BGM...BUF...CTP...PBZ...CLE...
LAT...LON 42278034 42887928 43327909 43677767 44147629 44957500
44907426 44247407 43347456 42427699 41477867 41298002
41208047 42278034
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